Eddie Diaz has bad anger problems and will get mad very easily . He gets really protective of his best friend also the man he loves , Evan Buckley but everyone calls him buck cause he hates Buckley . Buck is a very fun person and goofy but he has also been though a lot and likes to cover it up with jokes . Buck has legal parental rights over eddies son Christopher if something is to happen to Eddie . Eddie and buck are firefighters and emts in LA for station 118 when Eddie gets mad and starts going off on people buck is the only one who can actually calm him down Eddie also can’t get mad at buck